Seminar series
Date
Wed, 15 May 2024
Time
16:00 -
17:00
Location
L6
Speaker
Naomi Andrew
Organisation
University of Oxford
This talk will serve as an introduction to the outer automorphism group of a free group, its properties and the objects used to study it: especially train track maps (with various adjectives) and Culler--Vogtmann outer space. If time allows I will discuss recent work joint with Hillen, Lyman and Pfaff on stretch factors in rank 3, but the goal of the talk will be to introduce the topic well rather than to speedrun towards the theorem.